专利内容由知识产权出版社提供
专利名称：Variable attenuation of an illumination
source
发明人：Joshua Owen Miller申请号：US15981382申请日：20180516公开号：US11131852B2公开日：20210928
专利附图：
摘要：Variable attenuation of an illumination source is provided by an aperture (i.e., anopening in a structure through which light passes) that is sandwiched between twotunable lenses that are configured to apply varying amounts of optical power. A
controller operates the first tunable lens to apply optical power to the light to bedivergent at the aperture structure so that a portion of the light is clipped. Varying theapplied optical power at the first tunable lens can increase or decrease divergence at theaperture structure to thereby increase or decrease clipping and the attenuation of thelight. The controller operates the second tunable lens to compensate for changes inlight state at the first tunable lens by applying opposite optical power so that collimatedlight from the illumination source which enters the first tunable lens may exit the secondtunable lens in the same collimated state.
申请人：Microsoft Technology Licensing, LLC
地址：Redmond WA US
国籍：US
代理机构：Mayer & Williams, PC
代理人：Mark K. Young
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